CellarPro AH6500 User manual

AH6500/AH8500
HumidificationSystem

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Congratulations on the purchase of the humidifier unit for the CellarPro Air Handler. This unit comes packaged
separately and requires some assembly and some steps to connect it to your air handler.
Package Contents
Tools Required
Humidifier
Adjustable wrench (2)
Remote humidistat with 10ft. 3 conductor leads
Phillips screw driver
10 ft. x ½” ID drain line
Screwdrivers (slotted) - #1 and #2
Self-tapping water line saddle valve
Specifications and Cut Sheets
General Description:
The CellarPro Humidifier is designed to mount directly to the evaporator module of any AH series cooling unit.
The humidifier is designed to increase the cellar humidity level above a 50% threshold where wine bottle storage
is more stable for preserving the corks. The humidifier for this unit utilizes an evaporative water pad, with a fresh
water supply line providing water to saturate an evaporative pad, which adds moisture to the cold air being
supplied to the cellar. It is intended for situations where the ambient relative humidity of the air surrounding the
cellar is insufficient to maintain the desired humidity level inside the cellar, as indicated by the shaded areas in the
chart below:
Typical Relative Humidity Range (%RH) for 55°F Cellar Temperature
without Humidifier
Ambient
Ambient Temperature °F
RH
65
70
75
80
85
90
95
10
9-14
12-17
15-20
18-23
22-27
27-32
33-38
15
16-21
20-25
25-30
30-35
37-42
44-49
50-60
20
23-28
29-34
35-40
42-47
50-60
50-60
60-70
25
30-35
37-42
44-49
50-60
50-60
60-70
60-70
30
38-43
44-49
50-60
50-60
60-70
60-70
65-70
35
44-49
50-60
50-60
60-70
60-70
65-70
65-70
40
50-60
50-60
60-70
60-70
65-70
65-70
65-70
45
50-60
60-70
60-70
65-70
65-70
65-70
65-70
50
50-60
60-70
65-70
65-70
65-70
65-70
65-70
55
60-70
60-70
65-70
65-70
65-70
65-70
65-70
60
60-70
65-70
65-70
65-70
65-70
65-70
65-70
The humidifier is controlled by a 24V remote humidistat powered from the cooling unit. The humidistat must be
mounted inside the cellar near the return air plenum inside the cellar. The humidifier operates independently from
the cooling unit, and uses the cooling unit evaporator fan to circulate the air. The factory set-point on the
humidistat is 55%RH, adjustable in 5% increments to a maximum of 70%RH.
Evaporative pad type humidifiers require a constant flow of water over the pad when the humidifier is on to keep
the water pad saturated and flush minerals and solids through to the drain. The water supply is regulated by an
internal orifice inside the humidifier, and will produce a continuous flow through to the drain line of approximately
6 gallons of water per hour during humidification. The humidifier will operate with a hot or cold water supply,
however the humidifier will operate more efficiently if supplied with hot water (140°F maximum).

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Humidifier Specifications
Dimensions (HxWxD) 16.04"x14.82"x14.41"
Weight 28 lbs
Power Consumption 0.96 Amps @ 115V / 60Hz
Humidistat Factory Set Point 55% RH
Humidstat Set Point Range 5% to 70% RH
Humidistat Adjustment Increments 5% RH
Humidistat Display Range 0% to 95% RH
Humidistat Display Accuracy (+/-) 4.5% RH
Water Supply Feed Rate 6 gph (gallons/hour)
Nominal Water Evaporation Rate
70°F, 35%RH room
140°F water supply
0.50 gph
Cellar Water Evaporation Rate
- 55°F Air, 50%RH cellar
60°F water supply 0.09 gph
90°F water supply 0.18 gph
120°F water supply 0.30 gph

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Installation Instructions
Step 1: Installing humidifier mounting brackets.
Install humidifier mounting brackets using #8 phillips head sheet metal screws. From the box of accessories
remove three brackets and the screws. The three brackets get mounted onto the Evaporator Module as shown
(left side facing air intake). Please make sure to mount the unit on the cold side, which is marked and on the side
opposite the controls. The brackets will form a sleeve for the humidifier to slide into. Locate the humidifier power
supply leads: black lead "80" and white lead "81". These leads will be pulled through the humidifier and
connected later in the process.
Step 2: Preparing the humidifier module for mounting.
From the humidifier in the box remove the humidifier access cover, internal screen, and water panel.
Right
mounting
bracket
Left
mounting
bracket
Humidifier
power supply
leads
Bottom
mounting
bracket
Humidifier
with access
cover
removed
Internal screen
Water panel
Important: Note
orientation of
water panel.
Distribution tray
must be on top
when reinstalled.

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Step 3: Mounting the humidifier module onto the Air Handler.
Mount the large humidifier module to the evaporator module by sliding into the mounting brackets and secure with
the #8 phillips head sheet metal screws that are provided.
- Remove backing
from double sided
tape on humidifier top
inside flange
- Slide humidifier into
mounting brackets
until flush with
evaporator module
- Attach (1) screw
through the inside top
panel of the handler
to the humidifier top
flange
- Attach screws
through left and right
mounting brackets
to humidifier
housing, (4) screws
per bracket.

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Step 4: Making the electrical connection to the Air Handler.
Connect humidifier power leads - black "80" to black, white "81" to white. Secure with cord clamp.
Step 5: Connecting the water supply to the humidifier.
Install 1/4" copper water line using compression fitting and flare nut to the water connection on the bottom of the
humidifier. Install humidifier drain line by sliding 1/2"ID flex tubing onto drain connection stub.
Power leads
from
humidifier
Feed power leads
from evaporator
module through to
back of humidifier and
plug into power leads
from humidifier.
Plug in
male/female
cord
connectors
Flare nut
Compression
fitting
1/4" water
supply line
Drain hose
connection stub.
Slip fit using 1/2"ID
flexible drain
tubing. Do not use
hose clamps as
they will damage
the coupling.

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Use two wrenches when tightening water line to avoid damage to the internal water solenoid valve.
Step 6: Setting up the excess humidifier water drain.
The humidifier filter pad will have a continuous supply of excess water which will flow out of the drain. The
diagram below shows how the drain should be located for the various configurations.
Wrench to
tighten
bottom nut
Wrench
inside to
keep
solenoid
valve from
spinning

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Step 7: Re-assemble the humidifier components.
Place the water panel back into the humidifier. Make sure the water discharge tube inserts into the water panel
top opening, and the water panel bottom drain is aligned with the housing drain. Replace the internal screen and
humidifier access cover.
Step 8: Mount and connect the humidistat.
Mount the remote humidistat inside the cellar near the return air plenum, at a convenient height to access the
display. Loosen the cover screw and separate the front housing from the base:
- Run the humidistat
lead wire through the
back hole to the
terminals.
- Install the mounting
plate using two wall
mounting screws.
- Connect wiring by
matching the wire lead
color to the terminals as
shown.
- Replace the cover.
Step 9: Getting started.
Power up the unit and set the humidistat to turn the humidifier on, and verify that water is flowing through to the
drain. The humidifier is now ready to put into service.
Cover screw

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Operating Instructions
The humidifier is controlled by the remote humidistat located in the cellar. The only function enabled on the
controller is humidity. The humidistat displays temperature in addition to relative humidity; however the cooling
unit temperature control is managed by the primary temperature controller. The humidistat controller will have no
effect on the air handler temperature settings for the cellar.
The humidistat has a factory set point of 55%RH, adjustable in 5% increments using the "Up" or "Down" arrows.
The maximum humidity set point is 70%RH. Settings above 70% will have a negative impact on the in the cellar,
creating mildew on the labels and in the cellar. A range of 50-60% humidity is ideal for the cellar and optimal
operation of the handler. Typically humidity above 60% begins to negatively affect the performance of the handler
making it work harder due to the increased humidity on the evaporator coil.
To turn the humidifier off, press the "More" button until the following screen is shown:
50%
55
°
Humidify
12:15
Cellar Temperature
Humidifier status
"More" programming
button
"Down" arrow to decrease
humidity set point
"Up" arrow to increase
humidity set point
"Done" programming
button
Time display
Cellar Relative Humidity
Pressing the "Up" or "Down" arrows will
cause the display to change and the
current set point value to blink. Use the
arrows to increase or decrease the
humidity set point to the desired value.
The display will return to the normal
display mode after a few seconds,
showing the current relative humidity.

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Then use the "Up" and "Down" arrows to set. "Auto" runs the humidifier automatically based on the set-point,
"Off" turns the humidifier off.
To set the Display Time:
1. Press "More" until the
hour display starts
blinking, then adjust the
hour using the "Up/Down"
arrows.
2. Press "More" until the
minute display starts
blinking, then adjust the
minutes using the
"Up/Down" arrows.
3. Press "Done" to save
settings.

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Operating Guidelines
Region 1: Initial Cellar Startup
As the temperature pulls down, the relative humidity rapidly increases from the base humidity level. This increase
in humidity will happen naturally, so for a faster pull down it is strongly recommended that the humidifier not be
turned on until the cellar pulls down to the set point temperature.
Region 2: Normal Cooling Cycle
As the cellar temperature decreases it will reach the temperature set point, and the cooling unit turns off. The
cellar temperature increases over time until the controller calls for cooling, and the cycle repeats. During the
cooling cycle, it is normal for the humidity to drop below the humidistat set point. When the cooling unit turns off,
there will be a spike in humidity that will balance out during the cooling unit off cycle. This is caused by water left
on the fins of the cooling coil re-evaporating into the cellar, causing the short overshoot in humidity levels. The
humidifier will control to the humidistat set point independently of the cooling unit cycles.
Region 3: Excess Run Time
Based on the ambient conditions and the cooling unit loading, it is possible that the humidity set point will be too
high to allow the cooling unit to reach the desired temperature set point. If so, the unit will run constantly, wasting
electricity and shortening the life of the unit. If the unit runs excessively, either the temperature set point must be
raised or the humidity set point must be lowered until the unit cycles as shown in Region 2.

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Water Panel Maintenance
For optimal performance, we recommend that you replace the water panel at least once a year, and clean out
mineral deposits in the distribution tray and drain:
Turnthecoolingunitoff anddisconnectthepower supplytoevaporatorandcondenser.
Turn off the water supply to the humidifier.
Remove the humidifier access cover to gain access to the internal humidifier components.
Remove Internal Screen (Item 1).
Lift the Water Panel evaporative assembly out of the humidifier housing.
To remove the distribution tray (Item 2) from Water Panel evaporative assembly, push down on tray and pull out
scale control insert (Item 3). To clean the "V" openings of the tray, gently pry the distribution tray cover (Item 4)
from the tray. Lightly scrape out or brush off any mineral deposits, being careful not to stretch or loosen the
synthetic fabric liner. Soaking the tray in vinegar or a lime-removing agent is helpful when trying to remove
stubborn mineral deposits.
Slide the Water Panel evaporator (Item 5) out from the scale control insert (Item 3) and dispose of the Water Panel.
Clean the scale control insert of mineral deposits. Replace the Water Panel evaporator with a replacement Water
Panel from CellarPro. Slide the Water Panel back into the scale control insert (Item 3) and snap the distribution tray
cover (Item 4) into the distribution tray (Item 2). Then snap the distribution tray back into the scale control insert.
Inspect the plastic feed tube by gently flexing it and looking for cracks or signs of wear. Replace tube if it is
cracked, brittle or has been damaged.
Remove the drain line from the bottom of the humidifier and flex it to loosen any mineral deposits or blockage. Then
flush it with water under pressure. If it does not properly clear, replace it. Slip the drain line back onto the drain fitting
(Item 6). Make sure the drain line has a constant downward slope and is not flattened or blocked.
Reinstall Water Panel evaporative assembly and Internal Screen (Item 1).
Reconnect electrical power and turn on water supply.
Set the humidistat to activate the humidifier, and verify proper water flow through to the drain line.
Return the humidistat set point to the desired level.
1. Internal Screen
2. Distribution Tray
3. Scale Control Insert
4. Distribution Tray Cover
5. Water Panel Evaporator
6. Drain Connection

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Troubleshooting
Issue: Cellar humidity does not reach desired set point
Diagnostics
Yes Yes
No
No
Is the temperature
display on the
cooling unit
illuminated?
Yes
No
Yes Yes
Yes
No
No
No
Is there water flow
in the supply line to
the humidifier?
Yes
No
Is the display on the humidistat illuminated?
Cooling
Unit Power
Check:
Verify the power leads "80" and "81" are connected
properly and are providing power to the humidifier.
Refer to the humidifier installation instructions to identify
these leads (accessed by removing the humidifier
Access Cover). If there are no loose connections, the
unit must be serviced by a qualified technician. Possible
causes: loose internal wiring, failed water solenoid valve,
internal water line blockage, failed humidifier contactor.
Proceed to Humidifier Power and Water Supply Check
Humidifier
Power and
Water
Supply
Check:
Is there water flowing from the humidifier drain?
Is the evaporator
fan blowing?
See cooling unit diagnostics related to evaporator fan
See instructions for setting the humidistat to "Auto" and
changing the set point.
Correct issue to ensure water is being supplied to the
humidifier.
The humidifier is
functioning. Possible
corrective actions: Replace
Water Panel, check set
point, check humidistat
placement in cellar,
increase supply water
temperature to increase
humidifier performance
(120°F recommended,
140°F maximum), increase
evaporator fan speed.
The humidifier fan needs to
be replaced.
Is the internal
humidifier fan
blowing?
To verify,
remove the
access cover,
internal screen,
and water pad.
Is the humidistat
set to "Auto" and
the set point at the
desired value?
Check for loose connections on the humidistat lead
connections inside the humidistat. If the connections
wired correctly and tight in the terminals, the unit must
be serviced by a qualified technician. Possible causes:
loose internal wiring, failed 24V transformer.
Check power supplies to both the evaporator and
condenser module. If the power supply to both modules
is confirmed, the unit must be serviced by a qualified
technician.

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Warranty
Please refer to the warranty section in the Air Handler Manual for the terms and conditions of the
warranty for this product.